MIL-PRF-423G
4.1 Classification of inspections. The inspection requirements specified herein are
classified as follows:
a. First article inspection (see 4.2).
b. Conformance inspection (see 4.3).
4.2 First article inspection.
4.2.1 First article examination. The first article ripping tool shall be examined as
specified in table I, as applicable. Presence of one or more defects shall be cause for rejection.
TABLE I. Examination schedule.
Method of
Category
Defect
examination
Major:
101
Material deterioration and control not as specified (see 3.2).
Visual
102
Dissimilar metals not as specified (see 3.2.1).
Visual
103
Identification of materials not as specified (see 3.2.2).
Visual
104
Heat treatment not as specified (see 3.2.3).
Functional
105
Dimensions and tolerances not as specified (see 3.3).
SIE 1/
106
Workmanship not as specified (see 3.8).
Visual
Minor:
201
Finish not as specified (see 3.5).
Visual
202
Identification marking not as specified (see 3.6).
Visual
1/ SIE = Standard Inspection Equipment
4.2.2 First article tests. The first article ripping tool shall be tested as specified in
table II.
TABLE II. Test schedule.
First article
Conformance
Requirement
Test
inspection
inspection
Heat treatment (see 3.2.3) 4.4.4
X
X
Performance (see 3.4)
4.4.3
X
X
4.3 Conformance inspection.
4.3.1 Lot. A lot shall consist of ripping tools of one type only.
4.3.2 Sampling. Sample size for examination and tests shall be determined in
accordance with ANSI/ASQC Z1.4. A lot shall be accepted when zero defects are found and
rejected when one or more defects are found.
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